189490152 has 64 divisors (see below), whose sum is σ = 483122880. Its totient is φ = 61924352.

The previous prime is 189490141. The next prime is 189490153. The reversal of 189490152 is 251094981.

It is a self number, because there is not a number n which added to its sum of digits gives 189490152.

It is not an unprimeable number, because it can be changed into a prime (189490153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289858 + ... + 290510.

It is an arithmetic number, because the mean of its divisors is an integer number (7548795).

Almost surely, 2^189490152 is an apocalyptic number.

189490152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189490152 is an abundant number, since it is smaller than the sum of its proper divisors (293632728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189490152 is a wasteful number, since it uses less digits than its factorization.

189490152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 189490152 is about 13765.5421978213. The cubic root of 189490152 is about 574.3750255537.

The spelling of 189490152 in words is "one hundred eighty-nine million, four hundred ninety thousand, one hundred fifty-two".